Detail 01
2.92 inch (74mm) post spacing
Center to center between the two mounting posts. This is the single measurement that decides whether the bridge fits at all.
Product detailSKU #1274115045836
Graph TechResoMax NV2 Auto Lock Bridge with String Saver Saddles 4MM Posts Chrome
Independent shopping perspective
The Korena take
A locking Tune-o-matic style bridge with String Saver saddles and 4mm posts, for players fighting string breakage or a bridge that shifts during changes.
Strong match
Who this is for
- Guitars where the bridge lifts or moves when strings come off
- Players who break strings at the saddle
- Upgrading a bridge on a 12 inch radius fretboard
Consider the trade-offs
When to look elsewhere
- Guitars whose post spacing is not 74mm
- Fretboard radii much flatter or rounder than 12 inch
- Anyone unwilling to pull the old posts or bushings
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
M8x1.25 post threads
Threaded posts, so bridge height is set by turning the posts. Your existing bushings must accept this thread or they need replacing.
Detail 03
Auto lock
The bridge locks to the posts instead of resting on them, so it cannot lift or shift when you take all the strings off.
Detail 04
2-1/16 inch (52.4mm) string spread
Distance from low E to high E at the bridge. Changes how close the outer strings sit to the fretboard edges when playing high up.
Detail 05
12 inch saddle radius
The saddle tops follow a 12 inch arc. On a much rounder neck, middle strings will sit too high or low relative to the outer ones.
Detail 06
String Saver saddles
Saddles designed to reduce breakage at the bridge, the usual failure point for players who bend hard or use a tremolo arm.
Final check
Know before you order
- 01Measure post spacing center to center before ordering, 74mm is not universal
- 02Existing bushings may need pulling if thread or diameter differs
- 03Expect to redo intonation and string height after fitting
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will this fit my guitar?
Check that your bridge posts sit 74mm apart center to center and that your bushings take M8x1.25 threads. If either differs, it will not drop in.
02What does auto lock actually do?
It locks the bridge onto the posts so it stays put when strings are removed. No more chasing a loose bridge during a string change.
03Do I need a tech to install it?
Basic swaps are straightforward if the posts match. Pulling and replacing bushings is where it gets harder and a tech is worth it.
04Will it work on a flatter fretboard?
The saddles are cut to a 12 inch radius. A very different radius means uneven string height, so match it to your neck.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsPlayability
- String Spread
- 2-1/16 inch (52.4mm)
- Saddle Radius
- 12 inch (305mm)
2 detailsOther
- Post Spacing
- 2.92 inch(74mm)
- Post Threads
- M8x1.25
